User blog comment:Fankemonbricka162128/List of Fishing Rod Pokemon most likely going to Super rod/@comment-32358261-20180416072356

Personally I would make old rod Pokémon feebas (very rare), magikarp (very common) and tentacool(uncommon)

Good rod would be for your usual ok pokemon

Super rod would be for final evolutions, (gyarados, tentacruel) and very rare Pokémon like dratini